BentoML is a Python library for building online serving systems optimized for AI apps and model inference. Prior to 1.4.39, a malicious bentofile.yaml containing a newline-injected value in envs[*].name produces unquoted RUN directives in the BentoML-generated Dockerfile. When the victim runs bentoml containerize on the imported bento, those RUN directives execute on the host during docker build. This vulnerability is fixed in 1.4.39.

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-w2pm-x38x-jp44 Dockerfile command injection via envs[*].name in bentofile.yaml (sibling fix-bypass of CVE-2026-33744 and CVE-2026-35043)
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Thu, 28 May 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Thu, 28 May 2026 03:30:00 +0000

Type Values Removed Values Added
First Time appeared Bentoml
Bentoml bentoml
Vendors & Products Bentoml
Bentoml bentoml

Wed, 27 May 2026 17:45:00 +0000

Type Values Removed Values Added
Description BentoML is a Python library for building online serving systems optimized for AI apps and model inference. Prior to 1.4.39, a malicious bentofile.yaml containing a newline-injected value in envs[*].name produces unquoted RUN directives in the BentoML-generated Dockerfile. When the victim runs bentoml containerize on the imported bento, those RUN directives execute on the host during docker build. This vulnerability is fixed in 1.4.39.
Title BentoML: Dockerfile command injection via envs[*].name in bentofile.yaml
Weaknesses CWE-78
CWE-94
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-05-28T15:09:40.051Z

Reserved: 2026-05-05T19:52:59.148Z

Link: CVE-2026-44346

cve-icon Vulnrichment

Updated: 2026-05-28T15:09:31.727Z

cve-icon NVD

Status : Undergoing Analysis

Published: 2026-05-27T18:16:23.333

Modified: 2026-05-29T15:34:31.597

Link: CVE-2026-44346

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-28T03:15:05Z

Weaknesses